The effects of shading treatments (full sunlight intensity, 70% sunlight intensity, 40% sunlight intensity) on chlorophyll content, photosynthetic characteristics and growth of Macropanax rosthornii seedlings were examined in a pot-culture experiment. The results showed that shading treatments enhanced the growth performance of the individuals of M. rosthornii with dark green leaves. Both canopy size and the number of compound leaves under shading were significantly greater than those under full sunlight (P<0.05). The contents of total chlor...